Penstemon rydbergii

The inflorescence is a symmetrical terminal raceme that blooms progressively from bottom to top, producing a gracefully tapered shape. The flowers are about 1 inch (2-3 cm) in diameter, slightly asymmetrical, with four magenta to pink petals and four narrower pink sepals behind. The protruding style has four stigmas. The reddish stems of this perennial are usually simple, erect, smooth, 1-8 feet (0.5–2.5 m) high with scattered alternate lanceolate leaves. It is native throughout the temperate Northern Hemisphere.